Oil & Gas
| Mon 01 Jun 2026
Beijing, June 1 -- PetroChina has applied Chinese patent for Sand Control Pipe Positioning Device and Positioning and Guiding Method. Zhong Ting, He Xinxing, Huang Kun, Wang Jiexiang, Zhang Bao, Liu Ju, Wang Fangzhi, Geng Hailong, Shen Jianxin, Su Zhou, Zeng Nu, Zhuang Xu, Wang Peng, Chen Defei, Zheng Weitao, Zhou Huaiguang, He ..